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Spring Framework 2.0.5 API 文档英文版
LazyInitTargetSourceCreator (Spring Framework API 2.0) - Spring Framework 2.0.5 API 文档英文版
org.springframework.aop.framework.autoproxy.target
Class LazyInitTargetSourceCreator
java.lang.Object
org.springframework.aop.framework.autoproxy.target.AbstractBeanFactoryBasedTargetSourceCreator
org.springframework.aop.framework.autoproxy.target.LazyInitTargetSourceCreator
- All Implemented Interfaces:
- TargetSourceCreator, BeanFactoryAware, DisposableBean
public class LazyInitTargetSourceCreator
- extends AbstractBeanFactoryBasedTargetSourceCreator
TargetSourceCreator that enforces a LazyInitTargetSource for each bean
that is defined as "lazy-init". This will lead to a proxy created for
each of those beans, allowing to fetch a reference to such a bean
without actually initialized the target bean instance.
To be registered as custom TargetSourceCreator for an auto-proxy creator,
in combination with custom interceptors for specific beans or for the
creation of lazy-init proxies only. For example, as autodetected
infrastructure bean in an XML application context definition:
<bean class="org.springframework.aop.framework.autoproxy.BeanNameAutoProxyCreator">
<property name="customTargetSourceCreators">
<list>
<bean class="org.springframework.aop.framework.autoproxy.target.LazyInitTargetSourceCreator"/>
</list>
</property>
</bean>
<bean id="myLazyInitBean" class="mypackage.MyBeanClass" lazy-init="true">
...
</bean>
- Since:
- 1.2
- Author:
- Juergen Hoeller
- See Also:
BeanDefinition.isLazyInit()
,
AbstractAutoProxyCreator.setCustomTargetSourceCreators(org.springframework.aop.framework.autoproxy.TargetSourceCreator[])
,
BeanNameAutoProxyCreator
Methods inherited from class java.lang.Object |
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait |
LazyInitTargetSourceCreator
public LazyInitTargetSourceCreator()
isPrototypeBased
protected boolean isPrototypeBased()
- Description copied from class:
AbstractBeanFactoryBasedTargetSourceCreator
- Return whether this TargetSourceCreator is prototype-based.
The "singleton" flag of the target bean definition will be set accordingly.
Default is "true".
- Overrides:
isPrototypeBased
in class AbstractBeanFactoryBasedTargetSourceCreator
- See Also:
BeanDefinition.isSingleton()
createBeanFactoryBasedTargetSource
protected AbstractBeanFactoryBasedTargetSource createBeanFactoryBasedTargetSource(Class beanClass,
String beanName)
- Description copied from class:
AbstractBeanFactoryBasedTargetSourceCreator
- Subclasses must implement this method to return a new AbstractPrototypeBasedTargetSource
if they wish to create a custom TargetSource for this bean, or
null
if they are
not interested it in, in which case no special target source will be created.
Subclasses should not call setTargetBeanName
or setBeanFactory
on the AbstractPrototypeBasedTargetSource: This class' implementation of
getTargetSource()
will do that.
- Specified by:
createBeanFactoryBasedTargetSource
in class AbstractBeanFactoryBasedTargetSourceCreator
- Parameters:
beanClass
- the class of the bean to create a TargetSource forbeanName
- the name of the bean
- Returns:
- the AbstractPrototypeBasedTargetSource, or
null
if we don't match this
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